package com.itheima.reggie.web;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.pojo.User;
import com.itheima.reggie.service.IUserService;
import com.itheima.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;


@Slf4j
@RestController
@RequestMapping("/user")
public class UserController {
    @Autowired
    private IUserService userService;

    @Autowired
    RedisTemplate redisTemplate;

    /**
     * 获取验证码
     *
     * @param user    用户phone
     * @param request 设置session
     * @return 返回string结果
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpServletRequest request) {
        //获取手机号
        String phone = user.getPhone().toString();

        if (StringUtils.isNotEmpty(phone)) {
            //生成验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();

            //暂不调用服务真实给手机发短信
            //后台获取验证码直接登录
            log.info("收到的验证码为：{}", code);


            //request.getSession().setAttribute(phone, code);

            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);

            return R.success("验证码发送成功");
        }
        return R.error("短信发送失败");
    }


    /**
     * 移动端用户登录
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map, HttpSession session){
        log.info(map.toString());
        //获取手机号
        String phone = map.get("phone").toString();
        //获取验证码
        String code = map.get("code").toString();
        //从Session中获取保存的验证码
        //Object codeInSession = session.getAttribute(phone);

        //从redis中获取保存的验证码
        Object sysCode = redisTemplate.opsForValue().get(phone);

        //进行验证码的比对（页面提交的验证码和Session中保存的验证码比对）
        if(sysCode != null && sysCode.equals(code)){
            //如果能够比对成功，说明登录成功

            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);

            User user = userService.getOne(queryWrapper);
            if(user == null){
                //判断当前手机号对应的用户是否为新用户，如果是新用户就自动完成注册
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            session.setAttribute("user",user.getId());

            //手动删除redis中储存的验证码
            redisTemplate.delete(phone);

            return R.success(user);
        }
        return R.error("登录失败");
    }

    @PostMapping("/loginout")
    public R<String> logout(HttpServletRequest request) {
        log.info("收到退出请求...");
        request.getSession().removeAttribute("user");
        return R.success("退出成功！");
    }
}




